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Figure 1
Sketch of the shadowing when diffraction gratings with sawtooth (top) and laminar profile (bottom) are operated at grazing incidence. p refers to the groove spacing, while θ and ϕ are the angles of grazing incidence and exit. The black areas are not illuminated or are not contributing intensity to the exiting beam, while the grey areas will diffract properly.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 25| Part 6| November 2018| Pages 1683-1693
https://doi.org/10.1107/S1600577518012419
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